[antlr-interest] Lexical rules

[Sharon Li]

Hello,

got a problem with non-determinism. how should i define my lexer rules so that I can have:

ALPHA  : ( 'a'..'z' | 'A'..'Z' ); 

DIGIT : ('0'..'9');

NUMERIC : (DIGIT)+ ((DOT) (d:DIGIT)*)* ;

NAME : (ALPHA) (ALPHA|DIGIT|UNDERSCORE)* ;


all in my lexer without getting a non-determinism error? Coz I need a rule that finds a single digit as well as a rule that finds a numeric (i.e with decimal places), and a rule for a single letter as well as word.

Thanks in advance for any help rendered! 


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